# physics

Magnetic fields are produced by moving charges and exert
forces on moving charges. When a particle with charge q is moving
with velocity v
S
in a magnetic field B
S
, the force F
S
that the field exerts
on the particle is given by F
S
= qv
S
: B
S
. The SI units are as follows: For
charge it is the coulomb (C), for magnetic field it is tesla (T), for force
it is newton (N), and for velocity it is m>s. If q = -8.00 * 10-6 C, v
S
is 3.00 * 104 m>s in the +x-direction, and B
S
is 5.00 T in the -y-direction, what are the magnitude and direction of the force that the magnetic
field exerts on the charged particle?

1. 👍 0
2. 👎 0
3. 👁 50
1. F = q V cross B
q = -8 * 10^-6
V = 3 * 10^4 in x direction
B = 5 in - y direction

V cross B is in NEGATIVE z direction by right hand rule with positive x cross negative y
since q is also negative, the final result is in the PLUS z direction
so
+ 8*10^-6 * 3*10^4 * 5 Newtons

1. 👍 0
2. 👎 0
👨‍🏫
Damon

## Similar Questions

1. ### AP Calculus

A particle is moving along a horizontal straight line. The graph of the position function (the distance to the right of a fixed point as a function of time) is shown below. Answer the following questions only on the interval

2. ### physics

Two forces, 1 = (3.85 − 2.85) N and 2 = (2.95 − 3.65) N, act on a particle of mass 2.10 kg that is initially at rest at coordinates (−2.30 m, −3.60 m). (a) What are the components of the particle's velocity at t = 11.8 s?

3. ### Algebra1 Math

A moving company charges \$800 plus \$16 per hour. Another moving company charges \$720 plus \$21 per hour. How long is job that costs the same no matter which company is used?

4. ### Calculus

A particle moves on a vertical line so that its coordinate at time t is 3 y = t − 12t+ 3, t≥ 0 . When is the particle moving upward and when is it moving downward? Find the distance that the particle travels in the first 3

1. ### math

Consider a particle moving along the x-axis where x(t) is the position of the particle at time t, x' (t) is its velocity, and x'' (t) is its acceleration. x(t) = t3 − 12t2 + 21t − 9, 0 ≤ t ≤ 10 Find the open t-intervals on

2. ### Physics

Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges?

3. ### MEC

two charges repel each other with a force of 0.1N when they are 5cm apart. Find the forces between the same charges when they are 2cm and 8cm apart.

4. ### manetism help!

A charged particle with charge q is moving with speed v in a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendiculuar to the same magnetic field. The time to complete one full circular

1. ### MATH

To rent a van, a moving company charges \$30.00 plus \$0.50 per mile. You are moving a distance of 150 miles and have budgeted \$100 for renting the van. Is this enough money? Explain.

2. ### Science

Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^-6/.025)=719200 Two equal charges

3. ### math

Steven is moving to another city next weekend and wants to rent a moving truck. The rental rates for two companies in his area are shown below. Each company charges an initial fee for renting the truck, plus an additional amount

4. ### Physics

Two point charges are 10.0 cm apart and have charges of 2.0 μC and –2.0 μC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? 8.99*10^9(2*10^-6/.025)=719200 Two equal charges